7223156813

182

6.5.4 Spćcifications de Famplificateur

Les sections prćcćdentes ont ćtć mises k la disposition du lecteur afin que celui-ci soit en mesure de bien comprendre les spćcifications de 1’amplificateur foumies k Opal-RT. Ces spćcifications sont prćsentćes k la Figurę 6.40 et k la Figurę 6.41.

Amplifier technical datasheet

BACK EMF AMPLIFIER/ABSORBER

Amplifier per sub module

Conneclion

Y floating

Amplifier type

D-Class, four quadrants

Dissipative unit for absorption modę (braking chopper).

Amplifier switching frequency

200 kHz

Continuous *

300W

Limited by thermal dissipation in the hcatsink. Upgradable with supplcmentary cxtemal braking chopper.

Transient for 0. ls, 10% duty factor ♦

1500W

Continuous (0 - 600Hz)

500W

Limited by input powcr supply Acopian Sourccs W100NT230

Transient for 0. ls, 10% duty factor

1500W

50V output guaranteed over 0.1 s with a 6600uF extemal capacitor, using W100NT250 sources

Transient for O.ls, 10% duty factor *

1000W

65V output guaranteed over 0.1 s with a 6600uF extemal capacitor, usina W100NT250 sourccs

Amplifier Bandwidth with unity output gain and Iow phase shift

IkHz

Amplifier Bandwidth up to -3dB gain with 150° phase shift

20kHz

Due to output filter characteristic designed for motor emulation.

Usage of standard Butterworth filter may change that characteristic, keeping in mind the power dissipated in the output resislor (sec also EMI characteristic).

Phase Shift at 400 Hz	0.3° 0.55°	1QV,——l sine wavc output. no load (Exp) Sine wave output, 80 load (Theo.)
Phase Shift at 1 kHz	0.5° 1.56°	lOYpe^^o^k sine wave output, no load (Exp.) Sine wave output, 80 load (Theo.)

* Indicated power is for a three phase operation

Figurę 6.40 Spćcifications de 1’amplificateur (1 de 2).